Shenandoah Caverns

Steve’s take

The only caverns in Virginia with elevator access, which means strollers and grandparents can actually do this one. The cave has the 'Diamond Cascade' — a wall of calcite that sparkles like a million diamonds when they hit it with the lights. Also includes a bizarre roadside attraction called American Celebration on Parade with old parade floats. It's the most I-81 thing possible — a cave, a gift shop, and giant Macy's parade floats in a field. Right off the highway. You can't make this up.